Home / 140,006.68-193,246.05-79,612.72

Finding the Fourth Proportional to 140,006.68, 193,246.05 and 79,612.72

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Solution

The fourth proportional to 140,006.68, 193,246.05 and 79,612.72 is: 109,886.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,006.68 : 193,246.05 = 79,612.72 : x
  2. Step 2: Convert to fraction form
    140,006.68/193,246.05 = 79,612.72/x
  3. Step 3: Cross multiply
    140,006.68x = 193,246.05 × 79,612.72
  4. Step 4: Simplify right side
    140,006.68x = 15,384,843,669.76
  5. Step 5: Solve for x
    x = 15,384,843,669.76/140,006.68
  6. Step 6: Final answer
    x = 109,886.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.